组织工程与重建外科杂志2011，Vol.7Issue(6)：330-332,3.DOI:10.3969/j.jssn.1673-0364.2011.06.008
三维有限元法对下颌角骨折内固定的生物力学分析
Biomechanical Study of Rigid Internal Fixation for Mandibular Angle Fracture Through 3-D FEM Simulation
代燕 1张超 2赵华强1
作者信息
- 1. 250012 山东省济南市 山东大学口腔医学院口腔颌面外科学教研所
- 2. 276800 山东省日照市 日照市中医医院口腔颌面外科
- 折叠
摘要
Abstract
Objective To observe the stress distribution of mandibular angle fracture under different rigid internal fixation (RIF) methods by developing a three-dimensional finite-element method (3-D FEM). Methods CT scan technology and related software were used to develop a 3 -D FEM of mandibular angle fracture under different RIF. On this basis, the mandibular stress distributions were analyzed by MSC.Marc software. Results The von Mises stress mainly concentrated on the middle of the titanium plate in tension band fixation, while in two mini-plate fixation, it concentrated on the middle of the superior titanium plate. In the tension band fixation, the max-values of displacement was more than that in the two mini-plate fixation. When the biting force dropped to 102.7 N (LMOL) and 40.3 N (ICP), the furthest fracture mobility got into margin of safety under the tension band fixation. Conclusion The two mini-plate fixation was more stable than the tension band fixation. Choosing the suitable occlusion, tension band fixation could also provide sufficient stability for the mandibular angle fracture.关键词
下颌角骨折/三维有限元分析/张力带固定/双列小型板固定Key words
Mandibular angle fracture/Three-dimensional finite-element method/Tension band fixation/Two mini-plate fixation分类
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代燕,张超,赵华强..三维有限元法对下颌角骨折内固定的生物力学分析[J].组织工程与重建外科杂志,2011,7(6):330-332,3.
